Add ability to store hidpi theme images in data pack

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_toolbar_view_unittest.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_nsobject.h"
 #include "chrome/browser/themes/theme_service.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_toolbar_view.h"
@@ skipping 17 matching lines @@
 class MockThemeProvider : public ui::ThemeProvider {
  public:
   // Cross platform methods
   MOCK_METHOD1(Init, void(Profile*));
   MOCK_CONST_METHOD1(GetBitmapNamed, SkBitmap*(int));
   MOCK_CONST_METHOD1(GetImageSkiaNamed, gfx::ImageSkia*(int));
   MOCK_CONST_METHOD1(GetColor, SkColor(int));
   MOCK_CONST_METHOD2(GetDisplayProperty, bool(int, int*));
   MOCK_CONST_METHOD0(ShouldUseNativeFrame, bool());
   MOCK_CONST_METHOD1(HasCustomImage, bool(int));
-  MOCK_CONST_METHOD1(GetRawData, base::RefCountedMemory*(int));
+  MOCK_CONST_METHOD2(GetRawData, base::RefCountedMemory*(int, ui::ScaleFactor));
 
   // OSX stuff
   MOCK_CONST_METHOD2(GetNSImageNamed, NSImage*(int, bool));
   MOCK_CONST_METHOD2(GetNSImageColorNamed, NSColor*(int, bool));
   MOCK_CONST_METHOD2(GetNSColor, NSColor*(int, bool));
   MOCK_CONST_METHOD2(GetNSColorTint, NSColor*(int, bool));
   MOCK_CONST_METHOD1(GetNSGradient, NSGradient*(int));
 };
 
 // Allows us to inject our fake controller below.
@@ skipping 137 matching lines @@
   EXPECT_CALL(provider, GetImageSkiaNamed(IDR_THEME_NTP_BACKGROUND))
       .WillRepeatedly(Return(&fake_bg));
 
   [controller_.get() setThemeProvider:&provider];
   [controller_.get() setCurrentTabContentsHeight:200];
 
   [view_ display];
 }
 
 // TODO(viettrungluu): write more unit tests, especially after my refactoring.